True in many respects, but I'd add two caveats. Some people do reread books, particularly people who read non-fiction books or are selective about the fiction that they read. The other thing is that some people have huge TBR piles. They may only read the books once, but may not get to a book immediately.

My solution is to read library books or books devoid of DRM. Libraries make more sense for those single read titles because reading a book once and tossing it into the dustbin is an extravagant waste of money (at least to some of us). DRM free books come in the public domain variety, CC variety, and enlightened publisher variety -- so there is a lot of choice.